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Multi-GPU maximum entropy image synthesis for radio astronomy
(Elsevier, 2018)
The maximum entropy method (MEM) is a well known deconvolution technique in radio-interferometry. This method solves a non-linear optimization problem with an entropy regularization term. Other heuristics such as CLEAN are ...
Position-dependent effective mass Dirac equations with PT-symmetric and non-PT-symmetric potentials
(Iop Publishing Ltd, 2006-09-22)
We present a new procedure to construct the one-dimensional non-Hermitian imaginary potential with a real energy spectrum in the context of the position-dependent effective mass Dirac equation with the vector-coupling ...
Position-dependent effective mass Dirac equations with PT-symmetric and non-PT-symmetric potentials
(Iop Publishing Ltd, 2006-09-22)
We present a new procedure to construct the one-dimensional non-Hermitian imaginary potential with a real energy spectrum in the context of the position-dependent effective mass Dirac equation with the vector-coupling ...
Estudo avaliativo de algoritmos genéticos aplicados a problemas de identificação em ElastodinâmicaEvaluative study of genetic algorithms applied to identification problems in Elastodynamics
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia Mecânica, 2020)
Redes neurais como alternativas ao Jacobiano na solução iterativa da cinemática inversa
(Universidade Federal de Santa MariaBrasilCiência da ComputaçãoUFSMPrograma de Pós-Graduação em Ciência da ComputaçãoCentro de Tecnologia, 2019-03-25)
The usage of robots has become a normal practice today thanks to large technological advances
in recent decades. The planning of robots’ movements in the environment is one of
the most important fundaments in the study ...
Inverse source problems and controllability for the stokes and navier-stokes equations
(Universidad de Chile, 2016)
This thesis is focused on the Navier{Stokes system for incompressible
uids with either
Dirichlet or nonlinear Navier{slip boundary conditions. For these systems, we exploit some
ideas in the context of the control ...
Problemas inversos em física da atmosfera
(Universidade Federal de Santa MariaBRFísicaUFSMPrograma de Pós-Graduação em Física, 2005-04-08)
Techniques for estimating unknown terms - such as eddy diffusivity and counter-gradient - in atmospheric flow are presented in this study. The methos is also used to identify the source term in atmospheric pollution. The ...
Determinación de la cartera óptima de inversión bajo un enfoque de programación no lineal
(Ciencia e Ingeniería, 2010)